Senior Facilities Engineer

• Stock:
  Substantial incentive stock plan for all full-time employees.
• Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• One Medical:
  Sponsored memberships for employees and their dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.

Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant’s new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.

• Stock:
  Substantial incentive stock plan for all full-time employees.
• Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• One Medical:
  Sponsored memberships for employees and their dependents.
• Vision: 100% top tier plan coverage + 50% for dependents.
• Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.

The best of today’s advanced reactor builders don’t wait for job postings. They join the winning team. If that’s you, contact us directly for immediate opportunities:

We are seeking a Facilities Engineer to support both facilities infrastructure projects and ongoing facilities operations in a lean, fast-paced manufacturing environment. This role blends engineering, construction project execution, and facilities management, with a strong emphasis on electrical systems, HVAC, and building utilities.

You will be a key partner to the Director of Facilities in delivering infrastructure projects, supporting daily operations, improving system reliability, long range planning, and mitigating risks. The role is hands‑on and cross‑functional, spanning project execution, preventative maintenance, contractor coordination, and continuous improvement across active manufacturing facilities. This position requires comfort operating in ambiguous environments, taking ownership from problem identification through resolution, and making sound engineering judgments with limited direction.

• Lead and support facilities infrastructure projects from concept through construction, commissioning, and closeout.
• Develop and manage project schedules and budgets for small to mid-sized facilities projects.
• Develop project scopes, support cost estimates, and track scope, schedule, and budget impacts.
• Coordinate design and execution of projects involving electrical distribution, HVAC systems, and building utilities (compressed air, process water, domestic water, natural gas, drainage, etc.).
• Support permitting, plan review, and AHJ coordination in partnership with Facilities and EHS.
• Provide construction oversight, including contractor coordination, site walks, issue resolution, and punchlist closeout.
• Identify infrastructure capacity constraints, single points of failures, and system risks.
• Contribute technical input to capital planning and prioritization for a multi-year facilities infrastructure roadmap.

• Support development and review of engineering design…